Dissertations / Theses on the topic 'Composés carbonylés – Dérivés'
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Zhang, Yin-Jie. "Nouveaux systèmes réducteurs utilisant des hydrosiloxanes pour réduire des acétals et des dérivés carbonylés." Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10047.
Full textLe, Gallic Yann. "Nouveaux réactifs de polycinylogation de dérivés carbonylés. Application à la synthèse de rétinoïdes." Rouen, 1992. http://www.theses.fr/1992ROUES036.
Full textRoblou, Emmanuel. "Réactivité des hydrures anioniques de chrome carbonyle vis-à-vis des composés phosphorés et des dérivés carbonylés α,ß-insaturés." Toulouse 3, 2002. http://www.theses.fr/2002TOU30153.
Full textHiouni, Abdelaziz. "Première synthèse des α-lithioacétals de cétène : condensation avec les dérivés carbonylés." Rouen, 1996. http://www.theses.fr/1996ROUES074.
Full textFlandrin, Yannick. "Mesure des émissions automobiles de composés organiques volatils et de dérivés carbonylés : application à la modélisation eulérienne de la pollution atmosphérique." Lille 1, 2002. https://pepite-depot.univ-lille.fr/RESTREINT/Th_Num/2002/50376-2002-27.pdf.
Full textMalpeli, Pascal. "Préparation de nouveaux ligands chiraux d'axe C2. Induction asymétrique lors de l'addition de dérivés lithiés sur des composés carbonylés prochiraux." Rouen, 1991. http://www.theses.fr/1991ROUES022.
Full textBen, Taleb Abdellah. "Réactivité d'un plasma froid différé d'azote : spectroscopies comparées de son interaction avec différents dérivés carbonylés : une application industrielle à la métallisation." Lille 1, 1991. http://www.theses.fr/1991LIL10091.
Full textHoullemare, Didier. "Allylation de dérivés carbonylés dans l'eau. Synthèse et réactivité de sélénoéthers β-hydroxylés delta-insaturés." Rouen, 1997. http://www.theses.fr/1997ROUES076.
Full textBoucley, Céline. "Utilisation de composés organomanganeux et d'organomanganates pour : l'addition 1,2 diastéréosélective sur divers dérivés carbonylés chiraux : l'addition 1,4 énantio et diastéréosélective sur des esters alpha,beta-éthyléniques." Paris 6, 2000. http://www.theses.fr/2000PA066064.
Full textBette, Virginie Andrée Marie. "Hydrosilylation asymétrique de cétones fonctionnalisées avec le PMHS : utilisation de complexes de zinc." Lille 1, 2003. https://ori-nuxeo.univ-lille1.fr/nuxeo/site/esupversions/bcf89cbb-550b-448b-ad77-f5df2e3d7a05.
Full textLe, Floch Camille, and Floch Camille Le. "Nouvelle méthodologie de synthèse de γ-butyrolactones par une réaction domino métallo-catalysée entre dérivés halogénés, composés carbonylés, et accepteurs de Michael." Phd thesis, Université Paris-Est, 2011. http://tel.archives-ouvertes.fr/tel-00674386.
Full textLe, Floch Camille. "Nouvelle méthodologie de synthèse de γ-butyrolactones par une réaction domino métallo-catalysée entre dérivés halogénés, composés carbonylés, et accepteurs de Michael." Thesis, Paris Est, 2011. http://www.theses.fr/2011PEST1098/document.
Full textThe γ-butyrolactone scaffold is a widespread naturally occurring motif, present in numerous compounds possessing biological activities. In this context, paraconic acids (bearing a carboxylic acid function at the position β to the carbonyl), constitute an important group of γ-butyrolactones that both display antitumor and antibiotic activities, but also represent relevant building blocks for the synthesis of diverse pharmacologically active compounds. However, the multicomponent synthesis of γ-butyrolactones has been only scarcely reported so far. Considering the selective reactivity of organozinc reagents, it was assumed that a range of 2,3-polysubstituted paraconic acids should be synthesized from an organozinc reagent, a carbonyl compound and a Michael acceptor through a metallo-catalyzed domino reaction involving the formation of three single bonds. This reaction allowed for the access to a wide range of 2,3-polysubstituted paraconic acids characterized by an unprecedented functionalized benzyl side chain in position β of the carbonyl. A study devoted to the elucidation of the mechanism of this reaction was carried out. The in vitro antitumor activity of a representative set of these compounds has been evaluated against various cancer cell lines (KB, HCT116, MCF7, HL60). These tests permitted to highlight a lead molecule, which was submitted to additional tests (PC3, SK-OV3, MCF7R, HL60R, MRC5, EPC, mechanism of action). IC50 between 0.6 and 6 µM have been measured for this compound. An extension of the reaction to ortho-bisubstituted compounds allowed for the domino diastereoselective synthesis of a range of ortho-condensed tricyclic lactones with good yields. Those compounds exhibit the tricyclic ABC pattern of strigolactones, hormones playing a fundamental role in the germination process of plants
Bettinelli, Claudio. "Etude de la photolyse à 266 nm ou 355 nm de composés carbonylés d’intérêt atmosphérique." Thesis, Lille 1, 2011. http://www.theses.fr/2011LIL10129/document.
Full textEmissions of organic volatile compounds in the atmosphere (COV) are due to human activities, and mainly from vegetation. Isoprene, which is an unsaturated hydrocarbon, is emitted in large quantities by deciduous trees (forests of North America) and leads by oxidation to carbonyl compounds, like methylvinylketone (MVK) or hydroxyacetone (HAC). These compounds are themselves oxidized or photolysed. Mechanisms of isoprene oxidation, comprising tens of reactions including all secondary species, are still under development (Mainz or Leeds mechanisms). They are improved by inclusion of new or more precise experimental data, like quantum yields of photolysis, which are defined as the efficiency of photons in breaking bonds. We used time-resolved laser infrared spectroscopy coupled to UV laser photolysis (TDLAS) to study the photolysis of acetone and HAC at 266 nm, and of MVK and acrolein at 355 nm. Quantum yields were obtained, but they should be taken with care due to the multi-photons absorption which occurred, demonstrated by the observation of CO in vibrational excited states. A joint analysis of the photolysis at 248 nm of acrolein and 3,3,3-trifluoropropionaldehyde by CRDS was also studied. The quantum yields of different channels of photolysis were obtained
Blasi, Mélanie. "Extraction liquide-solide sélective en milieu hydroalcoolique : application à la réduction du pouvoir de combinaison des vins blancs liquoreux." Bordeaux 1, 2005. http://www.theses.fr/2005BOR13098.
Full textZeghdoudi, Rachida. "Contribution à la synthèse totale des dérivés du taxane." Paris 11, 1988. http://www.theses.fr/1988PA112083.
Full textTrécourt, François. "Elaboration de dérivés carbonylés orthosubstitués de la pyridine : application d'une nouvelle méthode de synthèse de pyridines, synthèse d'hétérocycles du type coumarine et xanthone." Rouen, 1987. http://www.theses.fr/1987ROUES021.
Full textRysak, Vincent. "Catalyseurs à base d’iridium ou de cobalt pour l’hydrosilylation sélective d’insaturations carbone-hétéroatome." Thesis, Lille, 2018. http://www.theses.fr/2018LIL1R037.
Full textIn this thesis, we first investigated the selective hydrosilylation of esters to aldehydes in the presence of triethylsilane at room temperature. We demonstrated that cationic iridium(III) metallacycles were selective catalysts when combined with 1,3,5-trimethoxybenzene. According theoretical calculations, the latter would allow the temporary trapping of transient silylium cations through the formation of an arenium intermediate. Afterwards, we applied a similar catalytic system for the hydrosilylation of carboxylic acids to obtain the corresponding alcohols or aldehydes in good yields but without control of the selectivity. The second part of this thesis was devoted to the reduction of esters to alcohols or aldehydes by cobalt catalysed hydrosilylation reactions. Depending on the source of cobalt used, we obtained two separate catalytic systems for the selective synthesis of alcohols or aldehydes. A study through analyses by TEM, XPS, DRX, IR and X-ray fluorescence as well as by control experiments unveiled the presence of cobalt(II) nanoparticles and low valent cobalt(0), the latter being the active catalytic species. The last part of this thesis developed the deoxygenation of esters to ethers through a hydrosilylation reaction catalysed by a borane derivative. A NMR experiment revealed the probable presence of a pentavalent silane as one of the possible catalytic species. For all the discovered catalytic systems, thorough studies have been carried out in order to understand the involved reaction mechanisms
Baudouin, Jacky. "Synthèse et réactions sélectives d' α oxoesters β fonctionnels et de leurs dérivés : nouveaux synthons et réactifs dans les séries du phosphore, du soufre et de l'azote." Rouen, 1987. http://www.theses.fr/1987ROUE5050.
Full textPellet, Alain. "Réactivité des pyridylacétonitrile, aminonitrile et éther de cyanhydrine vis à vis de composés carbonylés α, β [alpha-béta] éthyléniques : synthèse et stéréochimie de γ [gamma] cétonitriles et de γ [gamma] cétoaldéhydes." Paris 11, 1988. http://www.theses.fr/1988PA112130.
Full textThis work deals with the regioselectivity of addition of alpha nitrile carbanions on unsaturated carbonyl compounds in the aim of synthesizing gamma functionalized carbonyl compounds. In the first chapter, we have shawn that the addiion of lithiated 3-pyridylacetonitrile to various enones in tetrahydrofurane, followed by protonation, leads exclusively to 1,4 adducts, the bicylcic ketones are Cis ring fused. The cis or trans stereochemistry of the 2,3-disubstituted cyclanones depends on the protonation of enolates under kinetic or thermodynamic control. The 1,2 addition of this anion on 3-methyl 2-butene 1-al is performed in tetrahydrofurane whereas 1,4 addition is observed under thermodynamic control in the presence of hexamethylphosphoramide or trifluoroboron etherate. In the second chapter, we have realized regioselective additions of lithiated and potassiated dimethylaminophenylacetonitrile and lithiated (ethoxy-ethoxy) phenylacetonitrile (latent benzoyl equivalents) on various unsaturated aldehydes. Our study centers on the influence of the nature of the reactants, solvents, cations, Lewis acids, and experimental conditions on the regio and stereoselectivities of these additions. A methodology leading to ketoaldehydes and keto allylic alcohols, usually difficult to obtain, was improved and applied to the synthesis of optically active compounds. In the third chapter, the reductive decyanation by different borohydrides was studied on an aminonitrile model with the aim of accessing to aminoaldehydes and aminoallylic alcohols. The desired free amine is accompanied by various amounts of stable amine-borane complexe according to the reducing agent. This methodology, applied to 1,4 adducts, leads to the corresponding aminoalcohols while retrocondensation occurs from the1,2 adducts
Renouf, Philippe. "Synthèse asymétrique par hydrolyse enzymatique de diacétates de diénols prochiraux. Nouvelle voie d'accès à des composés optiquement purs." Rouen, 1995. http://www.theses.fr/1995ROUES048.
Full textLaunay, Jean-Claude. "Protonations énantiosélectives d'énolates prochiraux : déracémisation d'acides carboxyliques et de dérivés carbonylés." Rouen, 1986. http://www.theses.fr/1986ROUES008.
Full textFeghouli, Abdelhafid. "Activation agrégative : Application des réducteurs complexes à la réduction stéréosélective de dérivés carbonyles cycliques." Nancy 1, 1989. http://www.theses.fr/1989NAN10153.
Full textFeghouli, Bakhta Ghania. "Activation agrégative : Application des réducteurs complexes à la réduction stéréosélective de dérivés carbonyles cycliques." Nancy 1, 1989. http://www.theses.fr/1989NAN10154.
Full textLecomte, Sandrine. "Préparation des diénolates de potassium à partir des diénoxysilanes et du tertiobutylate de potassium : Etude de leur condensation régiosélective avec les dérivés carbonylées. Mise au point d'une méthode de prénylation." Rouen, 1997. http://www.theses.fr/1997ROUES072.
Full textAdnani, Driss. "Réactivité en cycloaddition [4+2] et [3+2] du tétrafluoroborate de 2-benzoyl-1, 2-dihyfroisoquinoléine - 1 carbonitrile (composé de Reissert dérivé de l'isoquinoléine) avec quelques énones et ethers d'enol. : Étude de la régio- et de la stéréochimie des cycloadduits." Besançon, 1995. http://www.theses.fr/1995BESA2022.
Full textHatzigrigoriou, Evagélia. "Réactivité de dérivés carbanioniques sur des alpha-énones mono-ou polycycliques et des alpha, gamma-diénones polycycliques." Paris 11, 1985. http://www.theses.fr/1985PA112031.
Full textThe present work describes the conjugate addition of carbanionic derivatives to mono-or polycyclic α-enones and to polycyclic a, γ-dienones, followed by enolates trapping with electrophiles. It is known that 3-substituent five and six membered ring enolates reactivity is dependent on the ring size, the nature of the 3-substituent and the reaction medium. The stereoselectivity of 2,3-disubstituted cyclic enolates protonation, under kinetic control, is dependent on the ring size and the nature of 3-substituent. The reactivity of anions precursors of aliphatic nitrile- and keto-substituted groups is examined and applied to synthesize compounds of pharmaceutical interest. The stereochemistry of the products is studied by ¹H NMR at 400 MHz
Denys, Goument Colombe. "Dicétones-1,4 thiosubstituées." Rouen, 1988. http://www.theses.fr/1988ROUES023.
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